Partialist

Inasmuch as the word fetish has deviated from its original meaning (that being a part of the anatomy imbued with magical powers, especially in the realm of the unnecessarily sexy) to apply to such distinctly extra-bodily (that is, originating from outside the body, not necessarily not entering it) items as PVC, ball gags, whipped cream or poodles, the domain of mystical, enigmatic or uncanny attractions to specific body parts has been moved to the realm of partialism.